Transparent impact polystyrene plastics

ABSTRACT

butadiene and styrene (and like monomers) are copolymerized with modifiers to produce linear, randomized copolymers with a block styrene content of about 40 to 80 weight per cent and a bound styrene content of about 70 to 95 per cent. They are sufficiently free of block butadiene to be transparent. Such copolymers are plastic rather than elastomeric, and have high elongations as compared with those usually associated with copolymers of such high styrene content. Also, they have very high impact resistance.



